baber/WOPTO huggingface dataset:
Patent GB-141717-A (GB)
Title: Improvements in and relating to chairs
IPC: A47C4/14
Filed: 1920-04-13
Abstract: 141,717. Parsons, W. J. Nov. 1, 1918, [Convention date]. Folding seats. - A collapsible seat comprises a back 11 integral with a support 12 having a transverse slot 10 with which engages a tongue 15 on the seat member 14, together with a seat-supporting hanger 18 and a strut 21. The strut may be detachably secured to the back by a plate 22 extending between the hanger and the back, or may be hinged to the back member. A strap or chain 24 may be provided.
Patent GB-796406-A (GB)
Title: Improvements in or relating to periscopes
Inventor: BURNS CHARLES
IPC: G02B23/24
Filed: 1954-04-08
Abstract: 796,406. Periscopes. BRITISH IRON & STEEL RESEARCH ASSOCIATION. June 27, 1955 [April 8, 1954], No. 10354/54. Class 97(1) A periscope comprises a casing with a number of light transmitting apertures at one end thereof and within the casing an optical system including a reflecting surface designed to cause the entrance pupil of the system to fall near to or externally of the casing, the reflecting surface being movable to align the entrance pupil with any of the apertures to provide the periscope consecutively with different fields of view. As shown in Fig. 1, the periscope has an optical tube 1, inside which is located an optical system comprising, in order from the rear end, an eye piece 2, a central objective 3, a partially light transmitting reflector 4 and a concave mirror 5. In the front of the tube, apertures 6 and 7 are located in the side of the tube 1 and an aperture 8 is located behind the mirror 5. The apertures contain protective windows 12, and register with apertures in a water-jacket 11 surrounding but spaced from the tube 1. Compressed air is supplied to the passage 22 between the water-jacket and the tube 1, and escapes at the apertures 6, 7, 8. Light rays entering one of the apertures 6, 7, 8 fall on the reflector 4. The reflected rays fall on the concave mirror 5 which forms an image I<SP>1</SP>, an inverted image I<SP>2</SP> of which is formed by the objective 3. The image P is viewed by the eye or for photography by a Ramsden eye piece 2. The partial reflector 4 is mounted on a plate 13 pivoted on a shaft 14 and has indexing mechanism whereby it may take up any of three angular positions to select the aperture 6, 7 or 8 to be used. The focal length of the concave mirror 5 and the position of the reflector 4 are so chosen that the entrance pupil, i.e. the image of the central objective 5 formed by the mirror 5 and reflector 4, is located at or outside the optical tube 1. The mirror 5 is apertured to allow passage of light from the aperture 8, which is placed behind it. If desired, a second convex lens 17 may be placed between the reflector 4 and the objective 3 in order to increase the field of view. This lens is slightly tilted to reject a ghost image of the aperture 8 which might otherwise be formed by light reflected from the lens into the concave mirror 5. The aperture of the system is controlled by an iris diaphragm 9 mounted on a slidable inner sleeve 9<SP>1</SP>.
Patent GB-574321-A (GB)
Title: Improvements in and relating to luminescent materials or phosphors of the alkaline earth metal sulphide type
IPC: C09K11/56
Filed: 1941-08-15
Abstract: 574,321. Luminescent materials. WELLS, A. F. Aug. 15, 1941, No. 10425. [Class 39 (i)] Luminescent materials containing alkaline earth metal sulphides in association with zinc or cadmium compounds are made by heating together at a temperature in the neighbourhood of 900-950‹ C. the constituent materials to form the sulphides in the presence of a salt or compound of either or both zinc or cadmium. The zinc or cadmium salts are preferably sulphates, but other salts such as tungstates, phosphates or sulphides are suitable ; in addition salts of the alkali or alkaline earth metals may be used. The activators may be bismuth or lead. The material may be made from the following constituents : 2 parts by weight of pure lime, 1.4 of pure sulphur, to which are added 10 per cent each of potassium chloride, cadmium sulphate and zinc sulphate, with lead in the proportion of .0008 gramme per gramme of calcium oxide. This gives a pale cream fluorescence. A similar preparation with 5 per cent potassium sulphide, 1 per cent of cadmium sulphate and 1 per cent of zinc sulphate gives a phosphor with bright white fluorescence.
Patent GB-412367-A (GB)
Title: Flexible tubing and the manufacture thereof
IPC: F16C1/26
Filed: 1933-04-07
Abstract: 412,367. Bowden mechanism. TONDEUR, R., 25, Denbigh Terrace, Notting Hill, and BOWDEN (ENGINEERS), Ltd., Victoria Road, Willesden Junction, both in London. April 7, 1933, No. 10471. [Class 80 (iii).] Casings for Bowden wire are made of two or more closely interwound wire coils, which, when the casing is bent, move relatively in radial directions so that the length of the casing remains constant. One or both of the coils may be of triangular or trapezoidal section, or one may be circular. In the former case the angle of the apex pointing inwards should not exceed 45‹ and that of the other 60‹.
Patent GB-166666-A (GB)
Title: Improvements in doors
IPC: E06B3/70
Filed: 1920-04-15
Abstract: 166,666. Austin, Sir H. April 15, 1920. Panels.-Shrinkage in the panel boards of doors is taken up by the wedging action of boards C', C<2>, C<3>, Fig. 1, having oppositely inclined edges. The boards C<1>, C<2>, pass through a mortise and recess in the top and middle rails as shown and a recess C<1>, in the bottom rail. The interior faces of the frame and rails are grooved as at b for the ends and sides of the panel boards. Fig. 2 shows a modification applied to a door having two intermediate horizontal rails. The horizontal rails are joined to the vertical frame members by bolts a, Fig. 3, having heads countersunk in the frame and engaging a nut b<4> non-rotatably held in a recess in the rail.
Patent GB-105323-A (GB)
IPC: B30B9/06
Abstract: 105,323. Briginshaw, F. F. March 29, 1916. Filter-presses.-A press for moulding pulp cakes or disks for filterpresses of the kind described in Specification 104,936 comprises a cylinder 4 having a cover 12 against which the pulp is pressed by a piston 5 actuated by an hydraulic ram 6, a stop 8 serving to arrest the travel of the ram, as shown on the right side of Fig. 1, so that a definite thickness is imparted to the pulp cake b. A catch 13 secures the cover 12, which is pivoted and provided with a counterweighted arm 14. A smaller ram 16, working in a cylinder 18 carried by the ram 6, serves to eject the moulded cake from the cylinder 4 to the position shown in Fig. 2, where the metal frame a described in the above-mentioned Specification is slipped over it, the trunnions 3 on the frame being inserted in bearings on a bracket 22, so that the frame and the pulp cake can be turned over on to a table 24 for removal to the filter-press. Stops 20 limit the travel of the ram 16, to which water is passed through ports 17 in a column 9, which serves also as a core for moulding the central aperture in the filter cake and as an air cushion to facilitate expulsion of the water from the rams. The ejecting-ram may be replaced by a lever or equivalent device. A tray 25 and a pipe serve to catch and convey away water expelled from the pulp.
Patent GB-724723-A (GB)
Title: Improvements in or relating to typographical composing machines
IPC: B41B11/18
Filed: 1953-04-17
Abstract: 724,723. Type-bar-making machines. MERGENTHALER LINOTYPE CO. April 17, 1953 [May 9, 1952], No. 10532/53. Class 100 (3). Assembling matrices.-A typographical line - composing machine comprises a line delivery carriage, for delivering a composed line from the assembler elevator through the intermediate channel to the first elevator, having two fingers to engage the line at opposite ends, line - measuring means associated with the carriage, and locking means controlled by the line-measuring means to prevent the line delivery movement of the carriage if the line presented to the fingers is not of the desired measure. The carriage 3 has an extension 3a with a notch 3b engaged by a projection on a latch 9 to prevent movement of the carriage when a solenoid 11 is energized. A line of desired length in the assembler elevator 1 strikes a leaf-spring 15 on the long finger 4 so as to move a switch. contact 17 and hold it out of contact with two grounded contacts 16, 18. If the line is too short, the contact 17 remains touching the contact 18, while if it is too long, the contact 17 is moved against the contact 16. In either of the last two cases, a circuit is completed from a battery B through a relay 27 and the machine frame, thus closing a contact 29 in the solenoid circuit from the A.C. supply C. A switch 25 remains open to prevent the operation of the solenoid until the elevator has risen sufficiently to present the line to the fingers, when a cam la closes it. A switch 26 is normally open, and is held closed by a cam 3c to allow the operation of the solenoid only when the carriage 3 is in its extreme right-hand position. The electrical connections may be replaced by mechanical linkages, and the locking device may be simplified by making it responsive to long lines only or to short lines only.
Patent GB-511618-A (GB)
Title: Improvements relating to cathode ray oscillographs
Filed: 1938-04-06
Abstract: 511,618. Oscillographs. CARR, G., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 6, 1938, No. 10586. [Class 37] [Also in Group XL] A cathode-ray oscillograph is provided with contacts in the time-sweep circuit comprising a relativelv rotatable brush and contact segment, or a set of segments, rotatable in proportion to the cyclically variable phenomena investigated, the shape of the segment providing different lengths of brush path, and means being provided for adjusting the lateral position of the brush relative to the contact. Phasing is varied by adjusting the brush about the axis of rotation. The adjustments of the time-sweep condenser and the lateral positioning of the brush contact are interconnected so that a section of the trace, for example part of an indicator diagram, can be expanded to cover the screen. The time-sweep condenser C is charged through a pentode V, a variable resistor R1 in the suppressor grid circuit controlling the picture size in respect of frequency variations. The discharge circuit comprises a resistor R2 and contacts S. shown constructionally in Fig. 2. The brush H bears upon an insulating drum L that has a tapered segment M extending circumferentially around the drum. A portion of the discharge potential can be taken at W to the electrode circuits for suppressing or removing the spot from the screen during intervals between the sweeps.
Patent GB-106659-A (GB)
IPC: C23C2/22
Abstract: 106,659. Taylor, P. B. May 29, 1916. Cleaning.-The branning rolls or brushes of a branning-machine are mounted in staggered relation instead of in nipping relation. The rolls may be grooved or covered with sheepskin, felt, or bristles, or provided with flaps or strips, and may reciprocate axially. The bottom of the upper roll g is preferably slightly below the top of the lower roll or rolls f. One or more of the rolls is provided with a spring mounting o, Fig. 3, and preferably has below it a small positively-driven roller r to assist in guiding thin plates. The machine may have a cover e, which may be made of fabric arranged to be rolled up. The feed and delivery rolls may be in nipping or staggered relation. The speed of the rolls preferably increases successively through the machine. Agitators k and partitions l<1> may be provided, and the bottom of the branning-chamber may be formed with recesses corresponding to the contour of the lower branning-rolls. The plate is preferably directed upwards before leaving the chamber; or the travel of the plate may be inclined or vertical. A plate may be passed through one or more machines in such a manner as to have each side uppermost for a portion of its travel.
Patent GB-935635-A (GB)
Title: Continuous production of anhydrous alkali sulphite
Inventor: SPORMANN WALTER
IPC: C01D5/14
Filed: 1962-03-21
Abstract: Finely-dispersed, white, potassium or sodium sulphite is obtained by precipitation from a solution of potassium or sodium hydroxide and potassium or sodium hydrogen sulphite in the presence of an excess of 12% of hydroxide over the stoichiometric amount necessary. Impurities such as iron thus remain in solution and can be separated with the mother liquor.  The average residence period of the sulphite crystals in the precipitation vessel is preferably at least 15 minutes thus ensuring easy filtration of the crystals. Neutralization of the excess hydroxide is effected by solution of weak acids, preferably with potassium or sodium hydrogen sulphite.
Patent GB-108061-A (GB)
IPC: A01D80/00
Abstract: 108,061. Blackstone, G. M., and Blackstone, H. V., (representatives of Blackstone, E. C.), and Watts, R. E. Aug. 30, 1916 Haymaking. - Swath-turners of the type in which the turning - devices are fitted with a series of tines arranged cone-like round their axis of rotation have a pair of tines mounted on each carrying-member in such a way that each tine is independently free to follow the surface of the ground. In the form shown, the tines have ends bent at right-angles pivoting in the holes j<1> of the boss e<2> of the planet pinion e. The tines pass through a slotted guide k held in position by a bolt k<3> and are held against lateral movement by lugs l. The tines may be removed by loosening the bolt k<3>, sliding the guide k off the tines, and turning them clear of the lugs l. Specification 632/14 is referred to.
Patent GB-231021-A (GB)
Title: An improved fertilizer
IPC: C05B7/00
Filed: 1924-05-03
Abstract: 231,021. Telfer, J. S. G. May 3, 1924. Manures.-A liquid manure is made by dissolving in water a mixture of the following ingredients :-Ammonium phosphate, ammonium sulphate, nitrate of soda. nitrate of potash, carbonate or phosphate of lime, kainite, ammonium nitrate and potassium carbonate.
Patent GB-1446164-A (GB)
Title: Basic enol ethers their salts processes for their preparation and pharmaceutical preparations containing the same
IPC: C07D213/30
Filed: 1975-03-17
Abstract: 1446164 Basic ethers ASTA-WERKE AG 17 March 1975 [22 March 1974] 10992/75 Heading C2C Compounds of the general formula (R 1 =phenyl, pyridyl or thienyl optionally substituted by halogen, C 1-4  alkyl, NO 2 , CF 3 , OH and/or C 1-4  alkoxy; alk = C 2-4  alkylene; R 2 , 3  = H, C 1-4  alkyl or NR 2 R 3  = pyrrolidino, piperidino, morpholino) and their acid addition salts are prepared by (a) reacting a compound of the formula with R 2 R 3 N-alk-Y in the presence of a basic condensation agent (R 4 +R 5 =bond and R 6  = cation of the condensation agent, or R 4 =separable group and R 5  and R 6  = H; Y = halogen or sulphonic acid ester group), (b) reacting a compound of the formula with R 2 R 3 NH in the presence of an acid-binding agent (X=Cl, Br), (c) reducing a compound of the formula with a complex metal hydride (Z = C 1-3  alkylene) or (d) reacting a compound of the formula with R 2 R 3 N-alk-OH in the presence of an acid catalyst (R 7  = C 1-4  alkyl; R 8  + R 9  = bond, or R 8  = C 1-4  alkoxy and R 9 =H), optionally followed by isomer separation and/or salt formation. The above compounds are spasmolytics, antiallergic agents, antidepressants and tremor inhibitors, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-129772-A (GB)
Title: Mechanism for Conveying Motion.
Inventor: SIGURDSON EIRIKUR HJALMAR
IPC: F16H35/00
Filed: 1918-07-04
Abstract: 129,772. Sigurdson, E. H. July 4, 1918. Globes and or@reries.-Apparatus for conveying rotary motion applicable to astronomical demonstrating instruments is based upon the known means for drawing an ellipse in which a flexible member of fixed length passes over or is secured to points representing the foci of the ellipse, in the present Specification the path of the ellipse or other curve being in a plane parallel to that containing the foci. Fig. 2 shows the device employed to produce movement of a lathe head 17 in an elliptical path to permit of corresponding shaping of a wood block held in adjustable jaws 18. A plate 62 rigidly secured to a stationary spindle 8 passing into a rotatable casing 1 is provided with slots 65 in which are secured adjustable bolts 66 on which rotate forks 56, 57 supporting the ends of a flexible chain 53. The chain is secured to ball-ended links 54, 55 engaging sockets in blocks 58 on the forks 56, 57. The chain supports a sprocket-wheel 52 carried in a frame 51 pivotally connected to a bolt 43 sliding in a slot 44 in a partition 27 in the casing 1. The casing is rotated by a belt cone 11, and the wheel 52 moves from end to end of the chain 53, which rotates bodily with its forks 56, 57, and the bolt 43 makes two reciprocations along the slot 44 for each revolution of the casing 1, striking out an elliptical path in space. The motion of the bolt 43 is conveyed to the head 17 through a connecting-rod 41, a fly-wheel 28, a second connecting-rod 35, and a block 13 sliding radially in the casing 1 and secured to a rod 14 carrying the head 17. A spring 23 acting on the block 13 tends to press the sprocket-wheel 52 -towards the periphery of the casing 1 and to keep the chain 53 tight. By simultaneous adjustment of the forks 56, 57 towards or away from the centre, the form of the ellipse produced may be varied, and pear-shaped or other similar curves may be obtained by unequal adjustment of the ends of the chain. Fig. 20 shows an apparatus for producing rotation of a member 89 on an axis at right-angles to that of its supporting and driving casing A, applicable as an astronomical demonstrating instrument. The chain and sprocket reciprocate a lever 95 carried in the rotating casing A, the member 89 being rotated twice for each rotation of the casing A through a connecting-rod 94 and crank-pin 93.
Patent GB-1085584-A (GB)
Title: Synchronized modulator-demodulator system
IPC: H03F3/387
Filed: 1966-03-14
Abstract: 1,085,584. Photo-electric chopper amplifiers. LEEDS & NORTHRUP CO. March 14, 1966 [March 16, 1965], No. 11100/66. Heading G1A. [Also in Division H3]  A D. C. signal is amplified by modulating the signal photo-electrically for amplification by an A. C. amplifier whose output is then demodulated. The D. C. signal which is presented at terminals 10, 11 is pulse modulated by the periodic conduction of a photo-sensitive device 14 in accordance with the periodic discharge of an illuminating discharge tube 16 upon positive half cycles of an A. C. supply 17. Transistors 24A and 24B are simultaneously switched on and off by the positive half cycles and demodulate the output of the amplifier 20: the ensuing amplified D. C. signal is further amplified at 29. The discharge tube 16 may be a neon tube and the photo-sensitive device a photo-diode, -transistor or -resistor.
Patent GB-643576-A (GB)
Title: Improvements in bearings
IPC: F16C33/78
Filed: 1947-04-25
Abstract: 643,576. Stuffing-box substitutes. DRONNINGBORG MASKINFABRIK AKTIESELSKABET. April 25, 1947, No. 11166. Convention date, May 1, 1946. [Class 122(v)] [Also in Group XXXIV] In the hub of a hoe disc or other agri cultural machine, the outer part of a laby rinth device comprises packing rings 8 spaced by distance rings 10 and is tightened between a shoulder 3a of a bore 3 in the hub 2 and the outer ring 4 of a ball, roller or ring lubricated bearing by a spacing member 12 and the hoe disc 1. The inner part of the labyrinth, interleaving the outer packing rings 8, comprises packing rings 9 spaced by distance rings 11, and is tightened against the face of the inner ring 5 of the bearing by a flange 14 of a shaft 6 and a nut 19, a washer 18, a supporting member 7, an annular cover disc 17 and a spacing member 13 being interposed. The invention may be applied to a shaft revolving in a fixed housing and a labyrinth may be placed on either side of one or more bearings. The spacing member 12 may alternatively be screwed in the hub bore.
Patent GB-1453504-A (GB)
Title: Separation process
IPC: B01D61/00
Filed: 1974-03-13
Abstract: 1453504 Membrane separations MONSANTO CO 13 March 1974 11215/74 Heading B1X A process for the separation of a soluble metal-containing compound from a liquid organic solution comprises contacting the solution under pressure against a first side of an acrylonitrile copolymer permeation membrane, the pressure being greater than the total pressure on the opposite side of the membrane and recovering from the opposite side of the membrane a liquid organic solution containing a reduced amount of metal-containing compound. Examples relate to the recovery of catalysts comprising a complex of iridium with carbonyl, phosphine and iodide; and complexes of cobalt, of maganese, and of copper with unspecified radicals. The membrane may be mounted in a wire mesh frame or used as hollow fibres.
Patent GB-1392195-A (GB)
Title: Filtering apparatus
IPC: B29C45/00
Filed: 1972-03-10
Abstract: 1392195 Valves A-I ENG Inc 10 March 1972 [6 Aug 1971] 11326/72 Heading F2V [Also in Division B1] Valve 32 either closes passage 26, and constrains molten plastics delivered to inlet 22 to flow outwards through straining apertures 28 and thence to outlet 17, or opens passage 26 allowing the plastics to flow straight from inlet 22 to outlet 17 (Fig. 2, not shown). The valve comprises a tapered plug rotatable by applying a wrench to flats 39 and urged into its seats in housing 12 and member 25 by a screw 34 pulling on its lower end and screws 38 pushing down on collar 37, which engages a shoulder 36 near its upper end. Screws 34 and 38 are loosened before the valve is turned and then tightened again to lock the valve in its new position. The plastics is delivered at 30,000 p.s.i.
Patent GB-409387-A (GB)
Title: Improvements in and relating to shirts and collars
IPC: A41B3/04
Filed: 1932-07-25
Abstract: 409,387. Shirts and collars. SHEPHERD, T. L., 18, Marlborough Street, and SHEPHERD'S SHIRTS, Ltd., 169, Western Road, both in Brighton. July 25, 1932, Nos. 11351/34, 11352/34, and 11353/34. Divided on 409,327. [Class 141.] The neckband of a shirt and a collar are maintained in wearing position without the aid of a back stud by the provision of interengaging ridges of non- compressible material, such as metal or celluloid. The ridges may be continuous or interrupted, and may take the form shown in Fig. 5 and Fig. 6, in which the ridge on the collar is larger than that on the neckband so as to overlie it and increase the security against detachment. In the construction shown in Fig. 5, rubber or like cords c g which usually are of circular cross-section are enclosed in sheaths d, k, respectively, which may be of fabric or other material. The sheaths may be of resilient material enclosing hard cores. In Fig. 6 is shown a construction with the engaging surfaces of the ridges in an inclined direction to increase security. Other constructions are described in which the ridges are of various shapes in cross section.